US3779025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pile installation
Assignee: Raymond International Inc
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Filing: 1971-10-07
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Granted: 1973-12-18
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Expires: 1991-10-07
Abstract
Abstract Piles are installed by driving a tubular lower pile shell section into the ground to a first location beyond which the shell section refuses to penetrate, thereafter, filling the shell with concrete, allowing the concrete to harden and stiffen the shell, and thereafter continuing to drive the concreted shell down to a final bearing depth substantially beyond the first location.
Inventors
- 👤 A Godley
- 👤 W Kruse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:43
CPC Classifications
E; E02; E02D; E02D5/00; E02D5/22; E02D5/34; E02D5/38
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
82 words
A method of forming a pile in the earth comprising the steps of driving a hollow tube, closed at the bottom, down into the earth to a first location less than the depth at which penetration refusal is experienced, then filling the tube with a flowable castable material to stiffen the tube, allowing the castable material to harden and thereafter further driving the tube with the castable material hardened therein further down substantially beyond said first location to a final bearing depth.
Claim 2
Independent Claim
82 words
A method of forming a pile in the earth comprising the steps of driving a hollow tube, closed at the bottom, down into the earth to a first location less than the depth at which penetration refusal is experienced, then filling the tube with a flowable castable material to stiffen the tube, allowing the castable material to harden and thereafter further driving the tube with the castable material hardened therein further down substantially beyond said first location to a final bearing depth.
Claim 3
Dependent Claim
30 words
A method of forming a pile according to claim 1, wherein the castable material is concrete and said concrete is allowed to harden about four days before said further driving.
Claim 4
Independent Claim
59 words
A method of forming a pile in the earth comprising the steps of driving a first tube down into the earth, filling the tube with a castable material to stiffen same, allowing the castable material to harden, connecting a further tube to the top of the first tube and thereafter driving the tubes together further down into the earth.
Claim 5
Independent Claim
59 words
A method of forming a pile in the earth comprising the steps of driving a first tube down into the earth, filling the tube with a castable material to stiffen same, allowing the castable material to harden, connecting a further tube to the top of the first tube and thereafter driving the tubes together further down into the earth.
Claim 6
Dependent Claim
35 words
A method of forming a pile according to claim 3, wherein the castable material is concrete and wherein water which rises to the top of said first tube is removed and replaced with a grout.
Claim 7
Dependent Claim
28 words
A method of forming a pile according to claim 3, wherein a steel plate is positioned on top of the castable material prior to connecting said further tube.
Claim 8
Dependent Claim
27 words
A method of forming a pile according to claim 3, wherein said further tube is connected by welding its end to the top of said first tube.
Claim 9
Dependent Claim
27 words
A method of forming a pile according to claim 6, wherein said tubes are driven together further down into the earth by application of vibratory driving forces.
Claim 10
Dependent Claim
22 words
A method of forming a pile according to claim 3, wherein said further tube is connected by means of a connector sleeve.
Claim 11
Dependent Claim
25 words
A method of forming a pile according to claim 8, wherein said connector sleeve is preassembled with one of said tubes by a press fit.
Claim 12
Dependent Claim
24 words
A method of forming a pile according to claim 9, wherein said connector sleeve is fitted to the other tube with a sliding fit.
Claim 13
Dependent Claim
29 words
A method of forming a pile according to claim 3, wherein said further tube, after being driven further down into the earth, is itself filled with a castable material.
Claim 14
Dependent Claim
47 words
A method of forming a pile according to claim 11, wherein the castable material in said further tube is allowed to harden and a third tube is connected to the top of said further tube and all said tubes are together driven still further into the earth.
Claim 15
Dependent Claim
54 words
A method of forming a pile according to claim 3, wherein said driving of the tubes together into the earth is undertaken by means of a mandrel extending down the interior of said further tube to engage the castable material in the first tube to distribute the force of driving blows between said tubes.
References Cited (Backward Citations)
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US2465557A
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US2698520A
Cited
US2920456A
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US3199300A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |